How do you calculate the deviation?
Do you sum the deviations like
-1% + -2% + -3%
= -6%
or do you convert them to change factors and multiply them
-1% * -2% * -3%
= 0.99 * 0.98 * 0.97
= 0.941094
= -5.8906%
How do you calculate the deviation?
Do you sum the deviations like
-1% + -2% + -3%
= -6%
or do you convert them to change factors and multiply them
-1% * -2% * -3%
= 0.99 * 0.98 * 0.97
= 0.941094
= -5.8906%